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441351 (2008 DR4)
Classification: Main-belt Asteroid          SPK-ID: 2441351
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2560066124748704 6.1197e-08  
a 3.179923974317026 8.7169e-08 au
q 2.365842409724497 1.833e-07 au
i 24.77271076591236 1.8478e-05 deg
node 344.3123679457701 2.2429e-05 deg
peri 254.700981544189 5.4625e-05 deg
M 358.0446447714486 5.342e-05 deg
tp 2459011.749849139001
(2020-Jun-11.24984914)
0.00030769 TDB
period 2071.207129479371
5.67
8.5165e-05
2.332e-07
d
yr
n .1738116844405086 7.1469e-09 deg/d
Q 3.994005538909555 1.0948e-07 au
  Orbit Determination Parameters
   # obs. used (total)      145  
   data-arc span      4013 days (10.99 yr)  
   first obs. used      2008-02-14  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67504  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:20:04  

Additional Information
 Earth MOID = 1.48805 au 
 Jupiter MOID = 1.62422 au 
 T_jup = 3.009 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO456091  
diameter diameter 5.131 km 2.188 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

441351 (2008 DR4)          Discovered 2008-Feb-26 by BATTeRS at Bisei SG Center
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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